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Types of Windows

Windows are made in a variety of configurations and with different operating mechanisms to meet your project's needs. Take a few minutes to get yourself familiar with the most common window types and their usual uses.

Casement Windows: Hinged windows with a sash that swing outward to the right or left. They usually have a crank and are ideal for use over a kitchen sink or anywhere that it may be difficult to reach a double hung window. Since the entire sash opens, casement windows allow for the maximum amount of ventilation and seal tightly when closed. Screens & grills can be applied to fit in with your home's exterior aesthetics. Interior and exterior glass is easily cleaned from inside, creating an added benefit.

Awning Windows: These windows are identical to casement windows except they are hinged on the top. This allows for them to open out and up like an awning. This leaves them open to breezes from the left or right. The majority of awning windows are used in combination with picture windows to provide ventilation.

Double Hung Windows: The Double Hung window is by far the most common window in the U.S. Built with two vertically sliding sash in a single frame, they open by sliding either the bottom sash up or the top sash down. This only allows for half of the window to be open at one time.

Single Hung Window: A single hung window is identical to a double hung window except only one sash is operable. They are frequently used when cost is a major factor.

Sliding Window: Similar to a sliding patio door, sliding windows have two sash, of which at least one moves horizontally to open the window. They are ideal for breezeways or any area where ventilation is needed.

Picture Window: A fixed position window that does not open. Usually used as a large window in the middle of a window wall design. This allows for unobstructed views. Unfortunately, picture windows do not allow for any ventilation.

Bay Window: A window made up of a large fixed position window and two angled windows off of the side, typically casement or double hung. These windows enlarge a room and create a large lighting area for your home. They create space inside that can be utilized for plants or a seat.

Bow Window: Similar to a bay window, bow windows are made up of configuration of four or more windows projecting out from a home in a curved formation. They are added for drama and beauty.

Specialty & Round Top Windows: These are windows in unusual sizes and/or shapes. They do not open and are generally used for architectural interest. They may be half circles, triangles, trapezoids, or any combination of the two. They are a fine detail to add your special touch to your home.

Roof Windows & Skylights: Sometimes it's appropriate to let mother nature into your home. Roof Windows & Skylights are specially designed to let the warmth of the sun into your home, without the rainwater. Skylights & Roof Windows are ideal for tight spaces with minimal amounts of natural light.

No matter which window style you select, your local Curtis Lumber can help you pick out the perfect solution for your project. Be sure to stop in today!


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